Beginning treatment when CD4 drops to 200 works well, but a team of Haitian and American doctors at the GHESKIO clinic in Port-au-Prince wanted to see if they could do better.
VOA: standard.2010.07.21
.. You want to get it-- if you keep adding assets, you can do better and better on your portfolio standard deviation.
你想得到-,如果不断增加资产,组合的标准差就会越来越小。
You might have trained yourself to do that and then maybe-- there may be cultural reasons why you like broccoli better then Haagen-Dazs lets say.
你可能已经训练自己去做这些,可能出于文化原因,你喜爱西兰花甚过哈根达斯
We're going to do this in four, just for-- just because I think it works out better so everybody tap your foot with a four beat.
我们只做四拍,因为我觉得这样的效果更好,大家都用脚打四个拍子
Depending on where the assets expected returns are and the assets' standard deviations, we can see that we might be able to do better than--have a lower variance than either asset.
根据资产的预期收益,以及收益的标准差,可以看到我们有更好的选择,这里的方差值比以上两种方案都要低。
And a lot of the strikes that you see in high schools and in-- I better get to my lecture,but-- you see in high schools and even in middle schools, have to do with the State,somebody saying, well we're going to take away two-hundred teachers in your department, or we're going to maintain a curriculum that doesn't seem to make any sense.
在高中里可以看到很多罢课,我最好回到正题,但还是再讲一点,在高中,甚至在初中有很多罢课,为了反对政府的某项规定,比如说要在这个系减少两百个教师,或者主张一份,完全不合理的课程安排
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